July 18, 2017—KB4025334 (OS Build 14393.1532)

Improvements and fixes

This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

Addressed issue with a port and thread leak that can cause a broad array of symptoms including unresponsive systems and iSCSI target connection failures. This occurs after installing monthly updates released between April 11, 2017 (KB4015217) through July 11, 2017 (KB4025339). This issue was called out as known issue in the corresponding release notes for these updates.

Addressed issue where a BT LE device is not enumerated correctly, which throws an error in the Device Manager.

Addresses issue where an LDAP search evaluating transitivity on a large number of objects uses an excessive amount of memory. An example of such a search is with a filter of memberof:1.2.840.113556.1.4.1941:=cn=GroupA,Ou=Accounts,DC=Contoso,DC=Com and a scope of subtree.

Addressed issue where launching a published application using an application server system fails intermittently. Additionally, logonui.exe crashes during the process.

Addressed a reliability issue where inserting into the IncomingDependencies list without acquiring LoaderLock resulted in an unresponsive system.

Addressed issue where a task’s repeat trigger stopped working after reboot.

Addressed issue where users could not update spooler settings for an hour after restarting it.

Addressed issue where the combination of Unified Write Filter and a legacy driver might cause Point-of-Sale devices to deadlock.

Addressed issue where a LUN connection that was received after the buffer allocation during iSCSI statistic collection overflowed the buffer and caused error 0x19. A UI issue that hides the iSCSI targets will be addressed in an upcoming release.

Addressed issue where an MPIO path failure on a Hyper-V host might lead to complete loss of disk access.

Addressed issue where a missing break statement might cause an MPIO LUN to be unexpectedly removed.

Addressed issue where the health of S2D clusters was inconsistently reported.

Addressed issue where frequent loading and unloading when Unified Write Filter is enabled might cause a system crash.

Addressed issue where touch screen and fingerprint swiping stopped working when multiple users were logged in.

Addressed issue where tasks launched for a service user with a stored password fail with ERROR_LOGON_FAILURE.

Addressed issue by changing the handling of certificate replacement from a separate “remove” -> “add” calls to a single atomic “update” call.

Addressed issue where UWF couldn't take updates through Windows Update due to a registry category mismatch.

Addressed issue that requires the addition of a new client-side Group Policy that optionally disables Dual Scan behavior.

Addressed issue where the PkeyAuth token handler may fail an authentication if the PkeyAuth request contains incorrect data. The authentication should still continue without performing device authentication.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.